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91)Which of the following enzymes is not protein? | |||
Pepsin | Steapin | ||
Ribozyme and Ribonuclease-p | Trypsin | ||
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92)The non protein organic factor firmly attached to apoenzyme is called as | |||
Co - enzyme | Co - factor | ||
Activator | Prosthetic group | ||
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93)Enzymes are different from inorganic catalysts in | |||
Being proteinaceous in nature | Not being used up in reactions | ||
Working at high tempature | Having a high duffusion rate | ||
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94)Which one of the following is correct? | |||
All enzymes are exhaustedin chemical reaction | They are non specific in their function | ||
All enzymes participate in metabolic reaction | Enzymes are not proteinaceous | ||
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95)The turnover number of an enzyme depends upon | |||
Concentration of substrate molecule | Active sites of enzyme molecule | ||
Size of enzyme molecule | Molecular weight of enzyme | ||
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96)The structural level that enables the proteins to function as enzymes | |||
Quarternary level | Tertiary level | ||
Secondary level | Primary level | ||
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97)Enzymes, vitamins, hormones have one thing in common | |||
All are proteins | All are synthesized in organisms | ||
All aid in regulating metabolism | All enhance oxidative metabolism | ||
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98)Out of total enzymes present in the cell, mitochondrion alon has | |||
20% | 60% | ||
70% | 95% | ||
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99)Who did show that enzymes are proteins? | |||
Miller | Sumner | ||
Pasteur | Leeuwenhoek | ||
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100)Protein part of a conjugate enzyme is known as | |||
Apoenzyme | Co-enzyme | ||
Co-factor | Prosthetic group | ||
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101)Destructive effect of high temperature on enzyme action is due to | |||
Formation of linkage between apoenzyme and its cofactor | Acceleration of reverse reaction | ||
Destructive of tertiary and quarternary structure of enzymes | All of these | ||
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102)Enzymes in nature is | |||
Amphoteric | Colloidal | ||
Highly sensitive | All of these | ||
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103)Find the wrong statement about enzyme action? | |||
They are proteins with complex three dimensional structure | Their molecular weight is high | ||
They act as catalyst and are required in small concentration | Their diffusion rate is very high | ||
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104)Enzymes have | |||
Different pH and different temperature optima | Different pH but same temperature optima | ||
Same pH but different temperature optima | Same pH and temperature optima | ||
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105)The relationship between turnover number and Km is | |||
Inverse | Linear | ||
Direct | None of these | ||
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